Copolymerization of a multiallyl monomer with styrene

Abstract

The free-radical copolymerization of the multiallyl monomer poly(N-allylmethacrylamide) with styrene in diluted dioxane solutions was studied. The chain transfer constant of the polystyrene radical to the multiallyl monomer was determined. The effect of temperature, initiator concentration, and initial composition of the monomer mixture on the copolymerization yield was examined and the content of unreacted allyl bonds and molecular weight were determined. Based on I R spectroscopy, 'H NMR, and elemental analysis and on the examination of the products of hydrolysis, the structure of the copolymers is described. The polymerization resulted in the formation of branched copolymers with ladder-type short blocks, linked through polystyrene blocks, and containing unreacted allyl groups. Copolymerisation eines Multiallylmonomers mit StyrenDie Copolymerisation des Multiallylmonomers Poly(N-allylmethacrylamid) mit Styrcn in verdunnter Dioxanlosung wuyde untersucht. Die Kettenubertragungskonstante des Polgstyrenradikals zum Multiallylmonomer wurde bestirnmt. Die Einflusse von Temperatur, Initiatorkonzentration und Zusammensetzung der Ausgangsmischung der Monomere auf die Ausbeute der Copolymerisation wurden ermittelt. Ferner wurden der Anteil nicht umgesetzter Allylbindungen uncl die Molekulmasse der Copolymere bestimmt. Anhand der Ergebnisse dcr Infrarotspektroskopie, lH-NMR, Elemeiitaranalyse und Analyse dcr Hydrolyseproduktc wird die Struktur der Copolymere heschrieben. Die Polymerisation fuhrt zur Bildung verzwcigter Copolymere mit kiirzen Leitcrpolymerblocken, die durch Polystyrenblocke verkniipft sind und nicht umgesetzte Allylgruppen enthalten. ConoA w e p uaa y UR M yAbm u a m UAOBOPO Molcowep a co cm u p o~o w I4ccnenosanacb panmanman C O~O J I~M~~R~~~~H E MynbTaannanoBoro MoHoMepa nonH(N-annMnMeTaKpHnaMHAa) 1101-0 panmana Ha MynbTnannHnosbrfi MoHoMep, a TaHxe onpenenetIo Bnmmme HeHoToPbrx napaMeTpoB npoqecca c o r r o n a~e p m a q~~ (TeMnepaTypbr, KoHqeHTpaqm aHHqAaTopa, ncxo,qHoro cocTaBa PeaKquoHHoti cpenbI) Ha B~I X O~ cononmepa, Ha conepHtaHne B HeM HenpopearaposaHHbrx annHnbHbrx ABofiHbIx c~m e f i II ero MoneKynnpHbIti Bec. CO CTRPOJIOM B pa36aBneHHbIX PaCTBOpaX B AHOKCaHe. HafiAeHa KOHCTaHTa CKOPOCTH IIt?pejT,aWl qenH n0nHCTHpOnb-Ha OCHOBaHAH Pe3yJIbTaTOB. I"I~-CIIeKrpOCKOIIkIH, 'H-HMP, 3JIeMeHTapHOrO a~ank13a, a TaKHEe EiCCJIefiOBaHMR IIPOJQ' KTOB I'HnpOnH3a OIIpeneneHO CTpOeHRe COlIOJIlJMepOB. nOJIyYeHHbIe pe3yXbTaTbI CBHneTeJIbCTByIOT 0 TOM, pOl3aHHbIe aJIJIHJIbHbIe rpyIlnbI, C KOPOTKMMkl 6 n o~a~~ JIeCTHH' 4HOPO TIIIIB, COenIIHeHHbIMH IlOJlMCTHPOJlbHbIMkl 6x0-w o B npoqecce c o n o n~~e p m a q a~ seponmo O~~~~Y I O T C F I p a a s e~s n e~~b r e cononmepm, cogepmaqMe Henpopearm-Kam .

Novel Approach to Synthesizing Hydrophobically Associating Copolymer Using Template Copolymerization: The Synthesis and Behaviors of Acrylamide and 4-(ω-Propenoyloxyethoxy) Benzoic Acid Copolymer

“…On the other hand, one of the most effective methods that could be applied to obtain copolymers with multiblock structure is template copolymerization. Several authors have done many works − to explain the template copolymerization process. It was found that the template copolymer exhibited a longer sequence distribution of monomers than that of traditional copolymers.…”

Deposition of Poly(ethyleneimine)/Poly(2-ethyl-2-oxazoline) Based Comb-Branched Polymers onto Polypropylene Nonwoven Fabric Using the Layer-by-Layer Technique. Selected Properties of the Modified Materials

“…This paper continues the research described in recent publications on the deposition of polymercomplex layers onto various textile fabrics [7,8,12,13]. In order to understand how the type, composition and architecture of the deposited polymer layer influences the properties of the prepared materials, previously synthesized and well-characterized PEI-PEtOx and bPEI polymers [14][15] have been used for deposition on nonwoven polypropylene substrates.…”

“…This method makes it possible to obtain materials with the combined properties of both surface and layer. By the inclusion of appropriate layers, it is possible to fine tune the properties of the surfaces e.g their hydrophilicity [12], dyebility [7], surface resistance [7], thermal stability [8] and electrokinetic properties [13]. Variations in the surface acidic or basic strength depending on the properties of deposited layers were also observed with the aid of an appropriate dye [7].…”

Electrostatic self‐assembly dyeing of cotton fabrics

“…anti‐static coatings for plastics, sensors, light‐emitting diodes, fuel cells, polymer capsules, etc.). Polyelectrolyte self‐assemblies of different textile fibres and structures were studied in general and these studies investigated only the possibility of using the electrostatic self‐assembly method for textile materials [3–6]. In our previous studies, we investigated the possibility of nanoparticle film deposition on cotton fabrics with electrostatic self‐assembly deposition, and we showed that the electrostatic self‐assembly process could be used to obtain functional textiles with antimicrobial, ultraviolet (UV)‐protective, self‐cleaning and flame‐retardant properties [7–9].…”